OK, so they say that Russia is one of three countries with tube production: Who are the other two?
Is tube production now such an ancient and arcane technology that one could NOT go into business now without fabricating the production machinery from old blueprints? Is it comparable to going back into production of steam locomotives or radial aircraft engines?
My understanding is that the former Soviet Union stayed with tube production as supposedly tube circuits were impervious to electromagnetic pulse following a nuclear detonation. Hard to imagine MiG29's flying around with tubes behind the control panel, but true.
I've always worried about the scenario of running out of tubes one day from purely economic reasons as demand slowly decreased as overhead slowly rose for the businesses involved.
But of course, in most of this world, payoffs are a cost of doing business, but the problem is that it always goes up and up. It's alarming from the standpoint that we may be headed to a time where any and all tubes, no matter how pedestrian, go for the rates of 'vintage' tubes that are for sale now.
J o e y